I keep getting texts to call this number on my cell phone because my "account it closed".

I keep getting these texts, too.  It is aggravating and I'd like to find out who this is and stop them.

I too keep getting a text stating that my Chase account is closed and to call 877 280 0733.

Got a text message as well.  These are scammers.  Do NOT call the number.  Report them to the FBI fraud center and the FTC.  And if you're on the Do Not Call list, report them there as well.